Soruto isn't even a real Japanese name, the meme name always was Saruto, with an A.
Saruto is a OC, he isn't a oficial character, he can be wheatever you want, he can be even the result of the forbbiden Relationship between Guy and Kakashi if you want.
WHAT FIGHTING SKILLS SHOULD THEIR GENINS KNOW BEFORE ENTERING THE Chunin Exams?
Kakshi aproved her to enter the exams, meaning that what she had enough to try for it, it is something relative, because as a Direct Answer to you question: there isn't.
Being a Genin, having done at least 8 missions, having the Permission of you Sensei, and have you whole team with the same conditions said above (but a Hokage can make an exception to the last one, like Hiruzen did with Itachi)
Bro used proof from characters from other verses
Bro it's a cliche, a trope that happens in many verses, it's like a Stronger character receive a heavy or fatal damage from a Vastly weaker enemy when it's off guard, Goku being wounded by a bullet and by a Lazer, Madara being wounded by Zetsu, and several other examples in another verse where Y character can't even scratch X character, but manages to impale X when they're off guard.
It's the same thing here, a COMMON TROPE ARROUND VERSES. "hey he's off guard, so his defenses are 30x weaker" "hey they're at light speed, let's put Lighting"
Like Flash, there are lighting arround him when he acheives LS.
Deku was some speed feats while fighting that characterizes him.
SSJ2 is so fast that lighting appears even if the user is still.
Raikage Speed is enchanched by the lighting bro, that's why he's so fast.
Welll, i watched a Youtube Video as a kid saying that the Lighting Itself reached Light Speed 💀💀
Btw, in anime Light Speed is relacionated with Lightings, it's a common Trope lmao.
A IRL Lighting reaches Light Speed, in anime (and fiction in general) lighting is used to represent Light Speed, or something close to it, like when Deku uses the clawing, he reaches Light Speed.
Bro just gave up debating
Naruto Dodged Raikage, which used Lighting Speed, and everyone with 2 iq knows that Lighting Speed = Light Speed
He is able to deduce the plans of them, and what they want to do.
Hiruzen literally coped with Danzou shit, this makes him te Worst Hokage.
You cannot Sum inteligence by Inventions, Kira is very inteligent and he never invented anything.
But Hashirama is stupid as hell for giving everyone nukes.
Hashirama was closer to creating a United Nations, if wasn't for the way ninjas used to think, he would have accomplished this.
They are Aliens with Thousands of years with Huge Wisdom accumulated by the mileniums.
Hiruzen coped more than Boruto haters, Sonic stans and Dragon Ball lowballers together.
Shikamaru is smarter than Otsutsukis, for me this is a feat that equals Batman Outsmarting gods.
Cameraman is able to keep up with the fastest fights in history, he wins.
What a Fair question, choosing between having full will and hving only a few burst of anger, or being doomed to having all you conscience drained by a sperm colored alien.
You can just watch the first chapters surrounding Hiden arc, if you want the Novel content which is canon, you can read the Novel, or just read the article in this wiki, all of them says that Shikamaru is the Chief.